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#ifndef _ncvMedianFilterOp_H_
#define _ncvMedianFilterOp_H_

#include "ncvImage.h"
#include "ncvMatrix.h"

/**
 * \class CMedianFilterOp
 * \brief Median filter operation
 *
 *
 * \note Symbian TClass.
 */

class CMedianFilterOp : public CImageOp
	{
public:
	/**
	 * \brief Constructor
	 * \param aImage CNokiaCVImage to use as source
	 * \param aKernelRows How big a kernel to use. Possible values are:
	 *	- 3 for 3x3
	 *	- 5 for 5x5
	 *	- 7 for 7x7
	 */
	IMPORT_C CMedianFilterOp( CNokiaCVImage* aImage, TInt aKernelRows );

	/**
	 * \brief Do the actual operation
	 * \param aTarget CNokiaCVImage to store the result in.
	 * \note the function can leave
	 */
	IMPORT_C void DoOperation( CNokiaCVImage* aTarget );

private:
	// Calculate the median value of a region around aPoint
	inline TUint32 MedianValue(CPixelAccess* pa, TPoint aPoint);

	CNokiaCVImage*		iImage;
	TInt			iRows;
	TInt			iD;
	TInt			iDx;
	};

#endif
